L-Cysteine hydrochloride anhydrous, (RT) (250g)

SKU:
30120-250G
  • $490.00

    • Description

    L-Cysteine hydrochloride

    anhydrous, ≥99.0% (RT)

     

    • CAS Number 52-89-1

    • Linear Formula HSCH2CH(NH2)COOH · HCl

    • Molecular Weight 157.62

    •  Beilstein Registry Number 3560277

    •  EC Number 200-157-7

    •  MDL number MFCD00064553

    Properties

    assay   ≥99.0% (RT)
    optical activity   [α]20/D +6.4±0.3°, c = 5% in 5 M HCl
    impurities   ≤0.5% foreign amino acids
    ign. residue   ≤0.1% (as SO4)
    loss   ≤1.0% loss on drying
    solubility   H2O: 1 g/10 mL, clear, colorless
    anion traces   sulfate (SO42-): ≤100 mg/kg
    cation traces   Ca: ≤10 mg/kg
     - Cd: ≤5 mg/kg
     - Co: ≤5 mg/kg
    -  Cr: ≤5 mg/kg
    -  Cu: ≤5 mg/kg
    -  Fe: ≤5 mg/kg
    -  K: ≤50 mg/kg
    -  Mg: ≤5 mg/kg
    -  Mn: ≤5 mg/kg
    -  NH4+: ≤500 mg/kg
    -  Na: ≤50 mg/kg
    -  Ni: ≤5 mg/kg
    -  Pb: ≤5 mg/kg
    -  Zn: ≤5 mg/kg